HDZero Halo H743 70A BLHeli_32 Stack with ICM42688 Gyro and ELRS RX for FPV Racing

Introduction

The HDZero Halo Stack (ICM + BLHeli_32) is a cutting-edge 20x20 high-performance powertrain designed for demanding FPV applications. It integrates the advanced Halo H743 flight controller, featuring the precise ICM42688 gyroscope, with a robust 70A BLHeli_32 4-in-1 ESC. Engineered specifically for FPV racing and freestyle pilots, this stack delivers exceptional reliability, clean power delivery, and ultra-responsive flight characteristics. Its plug-and-play wiring system significantly simplifies the assembly process, making it ideal for both professional builders and enthusiasts seeking a top-tier FPV setup.

Key Advantages

• Complete Plug-and-Play Kit: No soldering required for RX, ESC, or HDZero VTX connections, ensuring a hassle-free setup.
• High-Performance Gyro: Features the ICM42688 gyroscope for stable, high-resolution flight data and precise control.
• Integrated ELRS Receiver: Built-in True Diversity Gemini ELRS (2xSX1280) provides reliable 2.4GHz control link.
• Advanced Flight Controller: Equipped with a powerful H743 processor (480 MHz) for lightning-fast control loop response.
• Robust ESC: 70A BLHeli_32 ESC with an 8-layer PCB and 24 MOSFETs handles high current demands with ease.
• Superior Power Management: Copper busbar architecture ensures excellent throttle response and protects the FC from voltage spikes.
• Durable Construction: Conformal coating offers resistance to moisture, dust, and corrosion, enhancing longevity.
• Optimized for HDZero: Designed for seamless integration with HDZero digital FPV systems, offering a low-profile and efficient setup.

Technical Specifications

• Flight Controller: HALO FC
• MCU: STM32H743 (480 MHz)
• Gyroscope: ICM42688
• BEC Output: DC 5V/4A, DC 9V/3A, DC 4.5V/0.5A
• Blackbox: 16MB Flash Memory
• I2C Pads: Yes
• UART Pads: TX2/RX2, TX7/RX7, TX8/RX8
• ESC Telemetry: RX4
• VTX MSP UART: TX5/RX5
• DJI HDL: RX3
• Buzzer Pads: Yes
• LED Tape: Parallel or Serial
• USB: Type-C
• Analog OSD: No
• FC Firmware: Betaflight: HDZERO_HALO
• ESC: HALO 4w1 70A ESC
• ESC MCU: AT32F421 (120 MHz)
• Firmware: BLHeli_32.10
• Input Voltage: DC 9V - 40V (3S - 8S)
• Telemetry: Supported
• Input Signal: Dshot 150/300/600/1200/2400, MultiShot, OneShot
• Output Voltage: VBAT (for FC power)
• Max Current: 70Ax4 (Continuous) / 100Ax4 (Burst)
• Current Sensor: Scale = 170, Offset = 0
• Solder Pads: Double-sided
• Dimensions: 33x43 mm
• Mounting Pattern: 20x20 mm, Φ4 mm holes with Φ3 mm press-fit
• Weight: 13.4 g
• Receiver: Integrated ELRS 2.4GHz Receiver
• Chipset: ESP32 + 2x SX1280
• FC UART: TX1/RX1
• True Diversity RX: Yes
• RF Frequency: 2.4 GHz
• Max RF TX Power: 10 mW
• Antenna Interface: 2x U.FL
• ELRS Firmware: HDZero Halo FC 2.4G Gemini RX

Applications

This versatile stack is ideal for high-performance FPV applications including competitive racing, dynamic freestyle flying, and demanding cinematic FPV setups. Its robust design and advanced features also make it suitable for UAV development requiring precise flight control and reliable communication.

Compatibility

The HDZero Halo Stack is compatible with 3S to 8S LiPo batteries. It features a 20x20mm mounting pattern with 4mm mounting holes (3mm press-fit). The stack is optimized for the HDZero digital FPV system and includes integrated ELRS 2.4GHz receiver support.

FAQ

What is the HDZero Halo Stack and who is it for?

The HDZero Halo Stack is a high-performance 20x20 FPV system integrating an H743 flight controller with an ICM42688 gyro and a 70A BLHeli_32 ESC. It's designed for FPV racing and freestyle pilots seeking reliability, power, and responsive control.

What are the main advantages of the HDZero Halo Stack?

Key advantages include a plug-and-play setup, the precise ICM42688 gyro for stable flight, an integrated True Diversity Gemini ELRS receiver, a powerful H743 processor for fast response, and a robust 70A ESC. It also features a conformal coating for durability.

What is the power input range for the HDZero Halo 70A ESC?

The HDZero Halo 4w1 70A ESC supports an input voltage range of DC 9V to 40V, making it compatible with 3S to 8S LiPo batteries.

Does the HDZero Halo Stack come with a built-in ELRS receiver?

Yes, the HDZero Halo Stack features an integrated Gemini ELRS 2.4GHz receiver with True Diversity, utilizing two SX1280 chips for reliable control link performance.

Where can I buy the HDZero Halo Stack and what are the delivery options?

You can buy the HDZero Halo Stack at HTDRONE, our specialized FPV parts store based in Poland. We offer fast shipping within Poland and reliable worldwide delivery via DHL. Shipping to Ukraine is also available via Nova Poshta.